Infection of a total knee joint prosthesis by peptostreptococcus micros and propionibacterium acnes in an elderly RA patient: Implant salvage with longterm antibiotics and needle aspiration/irrigation

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Abstract
We describe the favourable long-term outcome after late total knee joint prosthesis infection in an elderly RA patient.Peptostreptococcus micros andPropionibacterium acnes were cultured from the synovial fluid, and the finding of a coexistent abscess at the root of a wisdom tooth suggested a dental origin to the joint infection. Long-term antibiotics in conjunction with aspiration/irrigation resulted in salvage of the implant and an excellent functional outcome.